/*
 * Copyright 2010 - 2011, The PLDesktop Development Team
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */

#include <machine/pc/memory/memmanager.h>
#include <machine/machine.h>

extern "C" void *malloc(size_t size) {
	if(size > 0) {
		return PLMachine::instance().kernelMemManger()->memhander()->alloc(size);
	}
	return 0;
}

extern "C" void *alloca(size_t size) {
	if(size > 0) {
		return PLMachine::instance().kernelMemManger()->memhander()->alloc(size);
	}
	return 0;
}

extern "C" void free(void *el) {
	if(el) {
		PLMachine::instance().kernelMemManger()->memhander()->dealloc(el);
	}
}

extern "C" void *realloc(void *ptr, size_t size) {
	if(ptr && size == 0) {
		free(ptr);
		return NULL;
	}
	if(ptr == NULL && size > 0) {
		return malloc(size);
	}
	void *ret = malloc(size);
	size_t copySize = PLMachine::instance().kernelMemManger()->memhander()->sizeOfMem(ptr);
	if(copySize > size) {
		copySize = size;
	}
	memcpy(ret, ptr, copySize);
	return ret;
}
